/************************************
*  Copyright (C) 2010 Julien MOTTIN.
*  Contact: julien.mottin@gueydan.eu
*
*  This file is part of Gueydan.
*
*  Gueydan is free software: you can redistribute it and/or modify
*  it under the terms of the GNU General Public License as published by
*  the Free Software Foundation, either version 3 of the License, or
*  (at your option) any later version.
*
*  Gueydan is distributed in the hope that it will be useful,
*  but WITHOUT ANY WARRANTY; without even the implied warranty of
*  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
*  GNU General Public License for more details.
*
*  You should have received a copy of the GNU General Public License
*  along with Gueydan.  If not, see <http://www.gnu.org/licenses/>.
*
*************************************/
#ifndef TEMPERATURE_H
#define TEMPERATURE_H

// Temperature Coeffs constants
const static double TCoeffCelsius     = 1.0;
const static double TCoeffFarhenheit  = 0.55555555556;
const static double TShiftFarhenheit  = -17.77777777778;


// Handled Unit
enum TemperatureUnit
{
    Celsius = 0,
    Farhenheit
};

class QString;

class Temperature
{
public:

    // Standard POD class
    Temperature(const double iTemperature=0.0, const TemperatureUnit iUnit=Celsius);
    Temperature(const Temperature &iT);
    Temperature & operator=(const Temperature &iT);
    ~Temperature();

    // Operators
    bool operator==(const Temperature &iT) const;
    bool operator!=(const Temperature &iT) const;
    bool operator<(const Temperature &iT) const;
    bool operator<=(const Temperature &iT) const;
    bool operator>(const Temperature &iT) const;
    bool operator>=(const Temperature &iT) const;

    // Converter
    double Value(const TemperatureUnit iUnit=Celsius) const;
    void FromString(const QString &iString, bool *OK=0);

private:

    // Internal data
    double _Value;  // in Celsius

};

#endif // TEMPERATURE_H
